guarantee meaning and definition

GUARANTEE noun

Definition of guarantee (noun)

1. a written assurance that some product or service will be provided or will meet certain specifications
   • synonyms: warrant, warrantee, warranty
2. an unconditional commitment that something will happen or that something is true
   • "there is no guarantee that they are not lying"
3. a collateral agreement to answer for the debt of another in case that person defaults
   • synonyms: guaranty

GUARANTEE verb

Definition of guarantee (verb)

1. give surety or assume responsibility
   • "I vouch for the quality of my products"
   • synonyms: vouch
2. make certain of
   • "This nest egg will ensure a nice retirement for us"; "Preparation will guarantee success!"
   • synonyms: assure, ensure, insure, secure
3. promise to do or accomplish
   • "guarantee to free the prisoners"
   • synonyms: undertake
4. stand behind and guarantee the quality, accuracy, or condition of
   • "The dealer warrants all the cars he sells"; "I warrant this information"
   • synonyms: warrant